[CMake] Compiling header files

[David Cole]

If you have "unresolved external" errors, then you are (most likely)
missing a target_link_libraries call -- find out what library those
symbols are built into, and link to that library.


On Tue, Nov 16, 2010 at 2:03 PM, David Doria <daviddoria at gmail.com> wrote:
> I am trying to use ADD_LIBRARY to create a .lib file from a collection
> of .cpp and .h files.
>
> If I do:
> ADD_LIBRARY(LibraryName AllOfTheCPPFiles.cpp)
>
> and then try to link against that library, I get many missing-function
> type linker errors. I looked in the .h files and many of them have
> actual function definitions:
>
> (an example):
> class UdpTransmitSocket : public UdpSocket{
> public:
>        UdpTransmitSocket( const IpEndpointName& remoteEndpoint )
>                { Connect( remoteEndpoint ); }
> };
>
> I tried to tell CMake to compile the .h files into the library as well
> by doing this:
>
> set(CMAKE_CXX_SOURCE_FILE_EXTENSIONS ${CMAKE_CXX_SOURCE_FILE_EXTENSIONS} h)
> ADD_LIBRARY(LibraryName AllOfTheCPPFiles.cpp  AllOfTheHFiles.h)
>
> but it didn't seem to change anything. Is there a way this is typically handled?
>
> Thanks,
>
> David
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